Figure 3.

Schematic representation of cross-linking strategies used for the stabilization of electrospun gelatin matrices. Physical cross-linking can be performed by high energy electron beam, plasma treatment, or dehydrothermal treatment. Chemical cross-linking can be performed by immersion in a cross-linking solution, by using vapors of the cross-linker, or by chemically modifying gelatin to subsequently cross-link it by UV irradiation.